Temporal visual filtering in diabetes mellitus
Related Experiment Video
Updated: Sep 20, 2026

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats
Published on: October 23, 2020
1Biophysics, Imperial College of Science, Technology and Medicine, South Kensington, London SW7 2BZ, UK.
Abstract:
The background modulation method was used to investigate the temporal response of the magnocellular pathway in diabetic patients and controls. The luminance threshold for detecting a moving, 2 degrees, achromatic target was measured as a function of background flicker frequency from 5 to 45 Hz. A model of photoreceptor kinetics integrated with difference of Gaussian receptive fields [Vis. Neurosci. 13 (1996) 173] was used to analyse the data. Diabetic patients with significant maculopathy showed raised thresholds at 8.75, 12.5, 15 and 17.5 Hz. Estimates of photoreceptor summation time were the same in both groups, but receptive field centre-to-surround delay showed an increasing trend in the diabetic patients.
Related Concept Videos
Diabetic Retinopathy
Diabetic Nephropathy
Photoreceptors and Visual Pathways
Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis
Diabetes: Symptoms, Diagnosis, and Complications
Glaucoma: Overview

